Regular Dropouts

[#1]

Re
My connection regularly drops out or goes to a really low speed.
A restart of the router fixes things. Been going on for months.
I've changed the microfilter.

Could it be anything else.

[#2]

Hi there, I've just checked over your account and ran some line tests and we're not seeing signs of any issues with the connection so it's likely that the problems you're seeing are down to the Wifi signal between the router and your devices. 

Please take a look at the guide here which should hopefully help with that: https://community.plus.net/t5/Plusnet-Blogs/How-to-boost-your-wi-fi/ba-p/1450193

Let us know how you get on.